Zebinella oligopleura
Shell of Zebinella oligopleura (holotype)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoinidae
Genus: Zebinella
Species:
Z. oligopleura
Binomial name
Zebinella oligopleura
(Woodring, 1928)
Synonyms[1]
  • Rissoina oligopleura Woodring, 1928

Zebinella oligopleura is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.[1]

Description

The length of the shell attains 9.7 mm, its diameter 3.6 mm.

(Original description) The shell is large. The body whorl is subangulated at the periphery. The later whorls of the spire are almost flat. The protoconch consists of about 2¾ whorls. The labial varix is heavy. The anterior channel is wide. The sculpture is very weak except on the early whorls, which bear crowded axial ribs, between which lie spiral pits. After the third or fourth whorl the sculpture gradually disappears, but on some specimens can be faintly seen even on body whorl.[2]

Distribution

Fossils of this marine species were found in Miocene strata in Jamaica.

References


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